tempory disabling listener

[willemien]

How do i temporary disable a listener?

In my code i temporarely want to disable a ListSelectionListener while a thread is running (see code)

   list = new JList(array); 
   list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
   list.setLayoutOrientation(JList.VERTICAL);
   list.setVisibleRowCount(-1);
   list.addListSelectionListener(new ListSelectionListener(){
     // Anonymous inner class
    public void valueChanged(ListSelectionEvent e)
    {
      final int index = list.getSelectedIndex() ;
      if (index != -1) {
        // TODO disable selectionListener 
        new Thread(){
          public void run() { 
            control.ShowTheorem(array[index]);  // method that will take some time 
            //TODO enable selectionListener
          }
        }.start();        
      }
    }
   });

[JosAH]

The object that fires an event to your Listener doesn't know anything about Listeners that are temporarily disabled so you should either remove that Listener from the object temporarily or make it handle its disabled state itself. An anonymous class (as you have now) can't handle that so you should craft a class that has a disabled state (a simple boolean) that can be set and tested in the valueChanged( ... ) method.

kind regards,

Jos

[willemien]

Thanks,

made my own listener. as suggested

Unfortunedly it won't work yet see my new post on problems with threads